bady{
    background-color: #000;
}
/*div{*/
    /*overflow: hidden;*/
/*}*/
h1,p{
    margin: 0;
    padding: 0;
}

/*页面宽度定义居中*/
.wrapper{
    width: 1006px;
    background-color: #fff211;
    margin: 0 auto;/*针对父容器居中*/
}

.clear{
    clear: both;
}

.heard{
    width: 991px;
    background-color: white;
    margin: 0 auto;
    min-height: 200px;
}


.main{
    width: 991px;
    background-color: green;
    margin: 0 auto;
}


.footer{
    width: 991px;
    background-color: blue;
    margin: 0 auto;
    min-height: 80px;
}

.main .sidebar{
    float: left;
    width: 742px;
    margin-right: 5px;
    background-color: blueviolet;
    min-height: 600px;
}
.main .content{
    float: left;
    width: 244px;
    background-color: chartreuse;
    min-height: 600px;
}